Which of the following results in the null hypothesis mu ≥ 38 and alternative hypothesis mu < 38? Select the correct answer below: A fitness center claims that the mean amount of time that a person spends at the gym per week is less than 38 hours.
1) The sample mean is 40 hours and the sample size is 100.
2) The sample mean is 36 hours and the sample size is 50.
3) The sample mean is 38 hours and the sample size is 200.
4) The sample mean is 42 hours and the sample size is 150.